Adhesive applying mechanism



March 2s, 1944. 5,1 WHITE EAL 2,345,227

ADHESIVE APPLYING MECHANISM Filed Feb. 5, -1943 2 Sheets-Sheet l ff229C! @Lw M+ s. .1. WHITE ET'AL.

ADHESIVE APPLYING MECHANISM March 28, 1944.

Filed Feb. 3, 1943 2 Sheets-Sheet 2 TORNEY l Patented Mar. 28, 1944UNITED STATES PATENT OFFICEv ADHESIVE- APPLYING MECHANISM ApplicationFebruary 3, 19.43, Serial No. 474,552

11 Claims.

This invention relates to adhesive applying mechanism and particularlyto mechanism for applying glue to the cap or ferrule of a pencil.

It has been customary for many years to use -metal caps on pencils andto secure the caps to the pencils and the plugs or erasers in the capsby pricking the metal cap.

At the present time, due to the necessity of conserving metal, caps ofpaper, plastic or other non-metallic material are used. The cap is Ys,.-cured to the pencil and the plug is secured to the cap lby adhesive orglue.

This invention has for its salient object to provide simple, practicaland eiective means for applying glue or adhesive to parts to be glued.

Further objects of the invention will appear from the followingspecication taken in connection with the drawings which form a part ofthis application, and in which Fig. 1 is a vertical sectional elevationthrough a device or mechanism constructed in accordance with theinvention, this View being taken substantially on line I I of Fig. 4,looking in the direction of the arrows;

Fig. 2 is a sectional elevation taken substantially on line 2 2 of Fig.5, looking in the direction of the arrows;

Fig. 3 is a sectional elevation taken substantially on line 3 3 of Fig.1, looking in the direction of the arrows;

Fig. 4 is a sectional elevation taken substantially on line 4 4 of Fig.5, looking in the direction of the arrows;

Fig. 5 is a sectional elevation taken substantially on line 5 5 of Fig.4, looking in the direction of the arrows; and

Fig. 6 is a sectional elevation taken substantially on line 6 6 of Fig.5, looking in the direction of the arrows.

The invention briefly described consistsof vadhesive applying mechanismcomprising a container for the adhesive, an apertured member movablethrough the adhesive, and reciprocatable means which is also preferablyrotatable for discharging the adhesive from the apertures andtransferring the adhesive to the parts to be glued.

Further details of the invention will appear from the followingdescription.

In the particular embodiment of the invention illustrated in thedrawings, the mechanism comprises a main frame member or casing I0having a cover II at one side thereof and a cover I2 at the other sidethereof, the latter cover including a cover plate I3.

The main casing I0 is carried by a bracket I5 and is adjustably mountedthereon in the following manner. An L `.shaped support or bracket I6 isadjustably secured to the end of the bracket I5 by a bolt I'I whichextends through a slot I8 in one arm of the L shaped member I6. A studI8 is threaded into the end of the bracket I5 and has a groove l2l)rwhich receives a ange or lug 2| formed on the upper end of thevertically extending arm oi the L shaped bracket I5. The bracket I6 isvertically adjusted by the rstud I9 and after it has -been adjustedthereby it is clamped in place by the stud Il. Suitableguideways areprovided between the outer end of the arm of the bracket I5 and thevertical arm of the L shaped bracket I6.

The casing I0 has a plate 25 secured tothe upper surface thereof and theplate 25 has a longitudinal rib 26 which forms a horizontal guideway andextends into a correspondingly shaped groove 2l in the under surface ofthe horizontal portion 28 of the L shaped support or bracket I6. A stud29 extends through the portion .28 which is slotted to receive the studand is threaded into the plate 25.

The main casing IIJ is provided with lbearings 30 and 3l in which isrotatably and slidably mounted a spindle 32 having at one end thereof aportion 33 provided with a spiral groove 34. A collar or bushing 35 issecured to the outer end of the bearing 30 and is provided with a 'lug36 which extends into the spiral groove 34. Thus, as the spindle 32 .ismoved longitudinally Vin the bearings 30 and 3| in a manner hereinafterldescribed, the spindle will be simultaneously rotated on its axis.

The spindle 32 has secured to one end thereof a plunger 40, a flange 4Ibeing provided at the end of the spindle and at the inner end ,of the`plunger 40.

'Ihe spindle 32 is reciprocated by means of a yoke 45 having abifurcated end 46 positioned in the groove of a collar 41 mounted on thespindle. The other end of the yoke 45 has an angular .eX- tension 48which is secured to a plate 4.9 which is slidably mounted in guideways50 formed in a plate 5I which is secured to one wall of the casing Ill.This wall is provided with .longitudinally extending slots 52 and 53.The yoke 45 extends through the slot 52, as shown in Figs. -4 and 6.From the showing in Fig. 4 it will be ynoted that the guideways betweenthe yplates 49 and 5I .are beveled, and that the plate 4,9 engages theoutside of the wall 55 Aofthe Acasing Ill.

The plate 49 has secured thereto an outwardly extending stud whichextends through a slot` 6l in the cover plate I3 and has connectedthereto an arm or link 62 by means of which theV plate 49 isrecprocated.

As the plate is reciprocated in the manner just described, the spindle32 will also be reciprocated and dueto the. spiral groove 34 and lug 36the spindle will also be simultaneously rotated.

During this motion the plunger 40 will be I formed in the plate 49. Theouter end of the extension 13 has secured thereto a spindle 15 I whichis rotatably mounted in lugs 16 carried by the outside of the plate 49.A spring 11 surrounds the spindle 15 and normally holds the arm 12 andtooth 1| in position to engage one of the teeth of the worm wheel 10when the i tooth and arm are moved to the left, viewing Fig.

1. During the return movement of the plate 49 and the parts carriedthereby, including the arm 12, the spring 11 permits the arm to raise sothat the arm and tooth may return to their original position withoutcausing the worm gear 10 and shaft 61 to rotate.

The disk 66 during its rotation passes through adhesive contained in `areceptacle or container 80 which is detachably supporting byinterengaging flanges 8| and 82 and a latch 83 on the bottom of thecasing I0. Adhesive is supplied to the receptacle 80 from an invertedcontainer 84 which is supported in a sleeve or cylindrical casing` 85having a downwardly extending portion 86 which is supported in anopening 81 in the casing I8.

In order to remove air from the apertures carriedl back into thereceptacle I and to fill the apertures with adhesive, there is provideda thermore, the rotation and reciprocation of the plunger into the capwill force adhesive into the inner end of the cap which is mounted onthe shouldered end 96 of the pencil P. After the plunger 40 hasperformed its operation it is withdrawn and the disk then rotates tobring another aperture into alinement with the next pencil and theforegoing operation is repeated. During the passage of the aperturesthrough the adhesive into the receptacle 88, the plunger 88 operates inthe manner hereinbefore described to remove air from the apertures andto supply adhesive thereto.

Although one specific embodiment of the invention has been particularlyshown and described, it will be understood that the invention is capableof modification and that changes in the construction and in thearrangement of the various cooperating parts may be made withoutdeparting from the spirit or scope of the invention, as expressed in thefollowing claims.

What we claim is:

1. Adhesive applying mechanism comprising an adhesive container,apertured means movable through adhesive in said container, means formoving said means through the container with an intermittent movement,and means movable through the apertures in said apertured means to ejectthe adhesive therefrom and apply the adhesive to the article to receivesaid adhesive.

2. Adhesive applying mechanism comprising an adhesive container,apertured means movable through adhesive in said container, means forplunger 88 which is carried by an arm 89 secured to the reciprocatableplate 49. As shown particularly in Fig. 6, the plunger 88 registers witheach aperture as it reaches a predetermined position of rotation and isprojected into the aperture, thereby removing air therefrom which hasbeen carried around after the operation of Y the plunger 40 whichdischarges the adhesive from the apertures and transfers it to thearticle to be glued. As the plunger 88 is retracted through each opening65, adhesive is drawn thereinto.

The invention above vdescribed was developed particularly for depositingadhesive or glue in the cap or ferrule of a pencil. Fig. 1 shows apencil P supported in any suitable support 90 in a position in alinementwith the axis of the spindle 32 and plunger 40. The disk 66 is rotatedintermittently in the manner above described and when each aperturereaches a position opposite the pencil, the plunger 40 is operated inthe manner shown in Fig. 1 and is projected'into the cap or ferrule 95which is positioned on the shouldered end 96 of the pencil P. As theplunger passes through the aperture 65,

` the glue in the aperture willbe carried by the plunger intol the openend of the ferrule or cap 95 and will be evenly distributed thereinsince the Y plunger rotates during its axial movement. Furmoving saidmeans through the container with an intermittent movement, andreciprocable and rotatable means movable through the apertures in saidapertured means to eject the adhesive therefrom and apply the adhesiveto the article to receive said adhesive.

3. Adhesive applying mechanism comprising an adhesive container,apertured means movable through adhesive in said container, means formoving said means through the container with an intermittent movement,means movable through the apertures in said apertured means to eject theadhesive therefrom and apply the adhesive to the article to receive saidadhesive, and means movable into and out of said apertures for removingair from the apertures and supplying adhesive thereto.

4. Adhesive applying mechanism comprising an adhesive container,apertured means movable through adhesive in said container, means formoving said means through the container with an intermittent movement,means movable through the apertures in said apertured means to eject theadhesive therefrom and apply the adhesive to the article to receive saidadhesive, and means movable into and out of said apertures when theapertures are disposed in the adhesive in the container for removing airfrom the apertures and supplying adhesive thereto.

5. In combination, means for supporting a member to receive adhesive, acontainer for adhesive, a disk rotatably mounted above the container andhaving apertures movable into and out of said adhesive as the disk isrotated, means for rotating said disk in a step by step movement, saiddisk being movable thereby into positions in which the apertures aredisposed opposite to and in alinement with said member, and meansmovable through said apertures for removing air from the apertures andsupplying adhesive thereto.

6. In combination, means for supporting a member to receive adhesive, acontainer for adhesive, a disk rotatably mounted above the container andhaving apertures movable into and out of said adhesive as the disk isrotated, means for rotating said disk in a step by step movement, saiddisk being movable thereby into positions in which the apertures aredisposed opposite to and in alinement with said member, means movablethrough said apertures to carry the adhesive from the apertures to themember, and means movable through said apertures for removing airtherefrom after said adhesive applying means has been actuated throughthe apertures.

7. In combination, means for supporting a tubular member to receiveadhesive, an apertured adhesive carrying member, and reciprocable androtatable means movable through the adhesive carrying member fortransferring the adhesive from the carrying member to the tubularmember.

3. In combination, means for supporting a tubular member to receiveadhesive, an apertured adhesive carrying member, land reciprocable androtatable means movable through the adhesive carrying member and intoand out of said tubular member for transferring the adhesive from thecarrying member to the tubular member.

9. Adhesive applying mechanism comprising an adhesive container,rotatable apertured means movable through adhesive in said container,means for moving said means through the container with an intermittentmovement, and means movable through the apertures in said aperturedmeans to eject the adhesive therefrom and apply the adhesive to the`article to receive said adhesive.

10. In combination, means for supporting a tubular member to receiveadhesive, an apertured adhesive carrying member, and reciprocable androtatable means movable through the apertures in said member fortransferring the adhesive from the carrying member to the tubularmember.

11. In combination, means for supporting a tubular member to receiveadhesive, an apertured adhesive carrying member, and reciprocable meansmovable through the apertures in said member for transferring theadhesive from the carrying member to the tubular member.

STEWART J. WHITE. ROSWELL H. SIMPSON. EDWARD MEOLA.

